Valve device for pneumatic tires



(No Model.) v

H. w. MEANS, J1", VALVE BBVGB FOR NE-UMATG .fESa

No. 560,183. atellte, May 1Qi N96.

@tunisie *Stans-,s

iin'inrrr @visioni HENRY Vs'. ADAMS, RJR., Ol." ELGIN, ILLINOIS, ASSIGNOR TO FRED 7. 1\l(`)R r AND RUFUS \\"ltl(-}l'i'l`, OF CHICAGO, ILLNOIS.

VA'LV DillCE-. FOR PiiiiiViATiC TIRES..

SPECIFCATIQN' forming part oi." Letters Patent No. 560,183, dated May 19, 1896.

Application filed April 30,1895.

T0 all whom it muy concern:

lie it known that l, l lENRYlV. ADAMS, Jr., a citizen of the United States, residing at Elgin, in the county of Kane and State of Illinois, 5 have invented a certain new and useful Iniprovcment in Valve Devices for Pneumatic Tires, of which the following is a specification. Prominent objects of my invention are to prevent injury to an elastic packing which io forms the seating portion of the valve, to insu re a tight joint between the valve and valveseat when the valve is closed,to prevent the packing from sticking to the valve-seat `and becoming disarranged when the valve is opened, to steady the valve and cause it to Work andclosc periectl y true, and to provide certain improved details serving to increase the general c'l'iciency of valve devices for pneumatic tires and ail'ord simple and practical construction.

o To the attainment of the foregoing and e ther useful ei'ids 1u yinvention consists inmatters hereinafter set forth.

. In the accompanying drawings, Figure l 25 I represents a section taken centrally and longitudinallytlirough' a valve device embodying my invention, the cap or nut for tightening up-and locking the valve i')eing.oini`tted.

Fig. 2 is a similar view including the cap orv 3o' nut and showingthe valve tightened against its seat and locked. Fig. 3 is a section on line :u .w in Fig. l. Fig. 4: shows the upper end portion of the casing represented in Fig. l. Fig. 5 shows the valve and certain-adjuncts,partly in central'longitudinal section and partly in elevation. Fig. G is alike view showing the sleeve F having an nnthreaded bore. Fig. 7 is a sectional plan on line y y in Fig. (5. 4o

lstood to be adapted for insertion within the tubular iiexible nipple of a pneumatic tire, l as usual; The valve-chamber .l within this casing is suitably closed at one end-forexainple, by-a screw-plug l5, having a bore L, which provides a passage between the valvechanibcr and the interior of the pneumatic tire. The easing is also adapted to provide a passage or throat 3, lcadn g lrozn the valvo- 5o .chamber to a threaded socket 1J., which is provided at said end of the easing. 'lhe thread- 'lhe'eylindric shell or casing A underf.

saai in. 547,603. in@ man.)

ed socket 4 is adapted to couple with the threaded nozzle oi an airpunip,and the throat S provides an air-passage between the valvechaniber and said lsocket. The valve C eoing 5 prises a cylindric cup-shaped headv 5, having a flat hottom,and an elastic packing' G, which is iitted within the cup and arranged below the open end 7 of the same. The stein D of the valve is threadedand arranged to extend c 'centrally through the iiat bottom of the cup and the elastic washer or packing. Said valve-stem is also provided at one end with a thin 'iiat disk 8, which iits -against the Vunder side of the said flat 4bottom 9 of the cup or 65 cup-shaped head 5. The inner end portion 'of the throat 3 is formed bya neck 10, which extends back from the internally-thickened portion 1l. of the easing and projects within the valve-chamber. When the valve is -iu 7o position to close the throat, the said neck is received within the open end of thc cup, so as to engage the packing, as in Fig. l, and when the valve is tightened up against the seat formed by the annular end of the neck 75 saidseat or end of the neck will press into they elastic packing, in Fig. Q. By thusemploying one end et' the'neck as a seat for the valve a tight joint can be provided when the valve is closed, and at the salue time the 8o packing will not stick to the scat during the act ot" opening the valve. ltwill alsoI be noted that by arranging the face of the clastic packing below the end 7 ofthe cup seas to leave an annular space within the latter S5 thepacking cannot be forced or c'rowd ed over the edge of the end '7 of tlie cup when the valvcs tightened up, it being understood that in valves where the packing is alionjed to thus spread over such edge it becomes cut 9o or ruptured. ly my arrangement, however, any portion ei" the packing which may bulge up when 'the valve is closed wiil simply-till a portion of the space around the neck, as in Fig. 9 The nut er cap E is provided with a Washer l2 and constructed with a stem 13, having a threaded socket l-i ior engaging the threadcd' end. off the valvi steixi, by which arraugenient the valve can be tightened against the' xoo seat bypropei'iy turning the nutor cap. The nut o`r cap is used a'iternaiely with the airl .A pmnp--that is to say, after the tire has been pneumatic tires.

inllated the airpnmp is disconnected from the threaded socket '-t, and the cap is then applied, as in ["ig. 2, so that by turning the cap the valve can he tightened npou'the scat and be looked in noch condition by the cap, which also closes the outer end et' the easing and excludes dust and moisture from the in terior of the easing. lhe threaded valvestem is also provided with a portion' which isy externally polygonal in erossmeeton, and while .a polygonal portion I could l'or the broader purposes ot' m v invention hei'ormed by properly shaping a portion of the.stem 1 prel'er as a matterof further improvementto l'orm the same bva sleeve l", which is arrangml upon thosiem. Thethroatflprovides :1f guideway for this pl'ilygonal portion or sleeve l and lherehysteadies the valve, and by reason ol' the conformation ol' said sleeve suitable air-passages are loft between the same and the eylindric wall of the throat. The sleeve is prelierably formed with a threaded bore, and in sneh vase it is screwed down upon the threaded stem, as in Fig. Il vsueh arrangement the sleeve provides a n nt which. van be tightened down upon the elastic pack ing, so as to maintain the latter in -place dni'- ing use, and at, the same time the said sleevle maintains the longitudinal axis olf the valve in exact coincidence with a lin 'passing eentrally andvlengitiulii-lally through, the throat. '.l`he valve will therefore he held against llt or wobble andwill always work troc, thereby. avoiding' a dll'lienlty common to valves .for

As another arrangement,

the bore ofthe sleeve can be Unthreaded, as in Fig. (i, and in such ease one end of the sleeve can he turned in, as at 1 5, sov as to engage in a groove lli in the valve-stem.

l'lhe spring (l is arranged between the valve and the end ping il, and said spring can he lsim ply interposed between such two members without need of a centering projection on the valve extending within the coiled spring,

,since the sleeve l? will at all times keep the ln'this way full, advantage canlvalve true. be taken of the resilient action of the spring,

since it will not .inelose and be in frietional.

arrn-ngei'l within the valve-chamber and eon -.vstrueled with a i-up,an elasli(l packing htted within the cup, and a stem extending through the elastic packing and provided with a polygonal portion formed by a sleeve which is held upon the stem and arranged to fitwithin y and work through the throat, and a spring act-ing to normally close the valve, substantia-ily as described. l l

A valve device fol-pneumatic tires, com prisingl a easing containing a \f'alvecha1nber and a throat Aleading from one end of the same. avalre arranged within the valveehainber and provided with a threaded stem and an elastic packing, and an exiger-naif?"- polygonal sleeve which is internally threaded and screwed upon the valve-stem, substantially as and for the purpose set forth.

3. A valve device forpneumatietires,comprising the shell A containing a valve-chamber 'l and a throat lead in g therefrom, a Valve arranged within the valve-chamber and constructed with a cup 5 containing an elastic packing, a: serew-tlneaded stem having a disk '8 fitted against vthe cup, anda sleeve F secured upon the stem and arranged to work'within the throat, and a spring arranged to normally close the valve, substantially asVdescribed.

it. -A valve device for pneumatic tires, coniprising a shell containing a val\-e-el1amber and a throat leading therefrom' and 'having one el its end portions formed by a neck 10, a valve' YC' arranged within the valve-chamber and constructed. with a-cnp, an elastic packing iltted within the cup, anda stem, anda sleeve l(` secured upon the valve-stem and o 5 arranged to work through thcthroat, sub` stantially as described. i

5. A valve device forpnenmatic tircs,'com pricing the shell or easing constructed with an internally-arranged valve-chamber; a neck forming a valve-seat atene' end of such chamber, and a' throat leading from the valveeharnber and extending centrally through the neck which forms the valve-seat; avalve m'- rangcd within the valve-chamber and comprising a cup containing an elastic packingv arranged with itz-s faee below the rim Vof the enp-so as to provide space wherein theneek which 'forms the seat is received when' the valve is closed; a spring arranged within the valve-chamber and tending to seat the valve.; andr a valve-stem extending from the bottom ofthe cup eentrallythroughthe elastie'packing and having a polygonal portion Vwhich works within the throat; and engages the wall 1 r oli the same, substantially as described..

l HENRY W. ADAMS, JR. Witnesses:

RETA M. WAGNER, (Sims. G. PAGE.' 

